Early 90's surly the best years of f1, where develop actually happened and awesome racing.
From what I remember, developement was halted from 1994 onwards. For me, 1993 had the most advanced cars out there. I absolutely loved active suspension - watching the wheels of a car moving up and down, while the car was jacked up, shows exactly what active suspension was about.
Another great idea was the ability to control the behaviour of the cars, via telemetry. So, in 2010, we have drivers with multiple buttons on their steering wheels, where their engineers tell them to press certain buttons. In the early 90s, the drivers didnt have to do this, as this could be done remotely, from the pits, miles away from the car itself. Had we continued along this line, I'm sure would've reached a situation where the car could be controlled, by a computer, via remote control...obviously, this would be a big no no.
Anyway, on-topic.
Unless there is rain or some crazy incident, its difficult to see how anybody but Vettel or Webber can win this. RedBull have got a super car. And as Vettel now is now getting preferential treatment, he has to fancy his chances to win this one. If it rains, then I think Button/Hamilton are in with a chance. Normally, I would put Button ahead of Hamilton in rain, but Button is not particularly good at this track, so I don't expect much from him here.
I expect Alonso/Ferrari to be strong here, too.
Barring "incidents", the top 5 should consist of the 2 RedBull cars, the 2 McLarens and Alonso. Any one of these could win.